tamerlan said, mommy, i love you. and dzhokhar's voice came from a distances, i love you, too, mommy. >> reporter: she watched the boys' father filmed here earlier in the week see them on the news for the first time. >> translator: and then for some reason he tells me, this is joe ar and tamerlan and points to the screen and says, here's tamerlan in the blue jacket and dzhokhar in the white jacket. and i say, anzor, these are the guys with the backpack, and these photos were shown. these can't be that. i don't know, these are my children. and then he grabs the tv screen and starts xraex iscreaming, it be, it can't be happening, i don't believe it. children are dead. i would have shouted myself. >> reporter: nick paton walsh, cnn. >> it's another catastrophe that's been overshadowed by the terrorist attacks hoer s here boston, an enormous explosion in texas at a plant that obliterated a small town. the crater was left at the scene of the blast, the explosion killed 14 people, 10 of them first responders, including 5 of